OBM is an open source project designed with an extremely stable and modular architecture with proved technologies. It is now recognized as the leader of open source PHP ERP project for email and groupware solution. OBM is also an enterprise-class messaging and collaboration platform for workgroup or enterprises with many thousands users.Functionnalities of OBM:- Groupware : shared calendars, contacts, tasks, ...

The idea of Online Webmailer, Calendar, Addressbook is to dispatch the problem to synchronize your private data such like calendar, addresses and emails.You can configure a lot of mail accounts. So you are PC- and platform independent. You only have to copy the project to your webspace.

PHPSyncML is a PHP SyncML Libary / Server for syncing your contacts, calendars, timetables from your PDA, mobile, desktop via the SyncML protocol. Syncml is the latest and greatest in synchronization. You can sync our desktop or your PDA to a groupware system.